<html xmlns="http://www.w3.org/1999/xhtml"> <head> <title>RELAX NG Pluggable Datatype Library Example</title> </head> <body> <h1>RELAX NG Pluggable Datatype Library Example</h1> <p>This package contains a very simple example of a <a href="../doc/pluggable-datatypes.html">pluggable datatype library</a>. The datatype library is implemented by the class <code>com.thaiopensource.datatype.sample.BalancedString</code>. The bulk of the implementation is inherited from the abstract class <code>com.thaiopensource.datatype.sample.SimpleDatatypeLibrary</code>, which provides default implementations for the methods in the interfaces which a datatype library must implement. A class that derives from <code>SimpleDatatypeLibrary</code> has only to implement a <code>boolean isValid(String literal)</code> method. The datatype library has the URI <code>http://www.thaiopensource.com/relaxng/datatypes/sample</code>, and contains exactly one datatype, which is called <code>balancedString</code>. This datatype allows any string in which parentheses are properly balanced (nested). To use this sample datatype library, simply include <code>datatype-sample.jar</code> in your CLASSPATH. You will then be able to validate against schemas using this additional datatype. The file <a href="datatype-sample.rng">datatype-sample.rng</a> is a simple RELAX NG schema using this datatype; <a href="valid.xml">valid.xml</a> is an instance that is valid with respect to this schema; <a href="invalid.xml">invalid.xml</a> is an instance that is not valid with respect to this schema.</p> <address> <a href="mailto:jjc@jclark.com">James Clark</a> </address> </body> </html>
